CVE-2025-48594

// CVE-2025-48594 PoC - Android DisassociationProcessor Permission Retention // This PoC demonstrates the improper input validation in onUidImportance method // Note: This is a conceptual PoC based on the vulnerability description // Actual exploitation requires specific Android environment and user interaction public class DisassociationExploit { // Simulated vulnerable method signature public void onUidImportance(int uid, int importance) { // Vulnerable code - improper input validation // The method does not properly validate the state transition // when a companion app is being disassociated // Attacker can manipulate the importance value to retain privileges if (importance == IMPORTANCE_ORPHANED) { // Bug: Should clear companion app privileges here // But due to improper validation, privileges are retained processUidImportance(uid, importance); } } // Normal flow - should revoke privileges on disassociation public void onDisassociation(int uid) { // This should clear all special permissions // But vulnerable implementation allows privilege retention revokeCompanionPrivileges(uid); } // Exploitation scenario: // 1. Install malicious companion app // 2. Establish device association to gain special permissions // 3. Trigger disassociation // 4. Exploit onUidImportance validation flaw to retain permissions // 5. Execute privileged operations without proper authorization } // Reference: https://android.googlesource.com/platform/frameworks/base/+/ea2bcc66534263fac4c337f1a5149704c2262169

{"cve": {"id": "CVE-2025-48594", "sourceIdentifier": "[email protected]", "published": "2025-12-08T17:16:16.523", "lastModified": "2025-12-11T15:15:47.783", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "In onUidImportance of DisassociationProcessor.java, there is a possible way to retain companion application privileges after disassociation due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.3, "impactScore": 5.9}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:*", "matchCriteriaId": "2700BCC5-634D-4EC6-AB67-5B678D5F951D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:*", "matchCriteriaId": "8538774C-906D-4B03-A3E7-FA7A55E0DA9E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:16.0:*:*:*:*:*:*:*", "matchCriteriaId": "2D49E611-5D53-479D-A981-42388FDC0E8D"}]}]}], "references": [{"url": "https://android.googlesource.com/platform/frameworks/base/+/ea2bcc66534263fac4c337f1a5149704c2262169", "source": "[email protected]", "tags": ["Patch", "Product"]}, {"url": "https://source.android.com/security/bulletin/2025-12-01", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}